Vacuum cleaner



FIG. 1 is the front/right-side/top perspective view of a vacuum cleaner showing our new design;

FIG. 2 is the front elevational view thereof;

FIG. 3 is the rear elevational view thereof;

FIG. 4 is the left-side elevational view thereof;

FIG. 5 is the right-side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings represent unclaimed portions. 

CLAIM We claim the ornamental design for a vacuum cleaner, as shown and described. 